Formation of two-phase coupled microstructure in AISI 304 stainless steel during directional solidification

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	Formation of two-phase coupled microstructure in AISI 304 stainless steel during directional solidification
	J. W. Fu; Y. S. Yang; J. J. Guo; J. C. Ma; W. H. Tong
	2009
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	24 期号:7 页码:2385-2390
摘要	Formation and evolution details of a two-phase Coupled microstructure in AISI 304 stainless steel are Studied by quenching method during directional solidification. Results show that the Coupled growth microstructure, which is composed of thin lathlike ferrite (delta) and austenite (gamma), crystallizes first in the form of colony from the melt. As solidification develops, the retained liquid transforms into austenite gradually. On cooling, solid-state transformation from ferrite to austenite results In the disappearance of part thinner ferrites and the final two-phase coupled microstructure is formed after the solid-state transformation. The formation mechanism of the two-phase coupled microstructure is analyzed based on the nucleation and constitutional undercooling criterion (NCU) before steady-state growth of each phase is reached.
部门归属	[yang, y. s.; ma, j. c.; tong, w. h.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [fu, j. w.; guo, j. j.] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china.;yang, ys (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn
关键词	Austenitic Stainless-steel Ferrite Morphology Solute Segregation Phase-formation Cooling Rate Welds Evolution Sequence
URL	查看原文
WOS记录号	WOS:000267610100029
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31910
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. W. Fu,Y. S. Yang,J. J. Guo,et al. Formation of two-phase coupled microstructure in AISI 304 stainless steel during directional solidification[J]. Journal of Materials Research,2009,24(7):2385-2390.
APA	J. W. Fu,Y. S. Yang,J. J. Guo,J. C. Ma,&W. H. Tong.(2009).Formation of two-phase coupled microstructure in AISI 304 stainless steel during directional solidification.Journal of Materials Research,24(7),2385-2390.
MLA	J. W. Fu,et al."Formation of two-phase coupled microstructure in AISI 304 stainless steel during directional solidification".Journal of Materials Research 24.7(2009):2385-2390.